664462760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1277813}}^1$

素因数の和:1277837

約数の個数: 32

約数和(自身を含む): 1610045640

約数和(自身を除く): 945582880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1277813, 2555626, 5111252, 6389065, 10222504, 12778130, 16611569, 25556260, 33223138, 51112520, 66446276, 83057845, 132892552, 166115690, 332231380, 664462760]

約数ペア:

[(1, 664462760), (2, 332231380), (4, 166115690), (5, 132892552), (8, 83057845), (10, 66446276), (13, 51112520), (20, 33223138), (26, 25556260), (40, 16611569), (52, 12778130), (65, 10222504), (104, 6389065), (130, 5111252), (260, 2555626), (520, 1277813)]